Contributing to DataFetch_Manager!

Welcome to the DataFetch_Manager! We’re glad you’re here to contribute to a growing collection of essential code solutions. Whether you’re here for Hacktoberfest or to enhance this repository, we appreciate your efforts!

Features

• Global State Management: Leverage Redux for managing application state, including UI controls and user authentication.
• Server-Side Data Fetching: Use React Query for efficient data fetching, caching, and synchronization with server-side data.
• Optimized Performance: Minimize API calls and improve app performance through effective caching strategies.
• Error Handling: Implement centralized error handling for both local (Redux) and server-side (React Query) data operations.
• Real-Time Data Updates: Automatically refetch and update data in the UI as server-side changes occur.
• Offline Support: React Query provides offline capabilities, queuing requests until the network is available.
• Pagination and Infinite Scrolling: Handle large datasets efficiently with pagination and infinite scrolling techniques.

Concepts

• React Query: A powerful library for data fetching in React applications, allowing you to cache, synchronize, and manage server state easily.
• Redux: A predictable state container for JavaScript apps that helps manage the global state of the application.
• Cache Management: Use React Query's caching features to optimize API call frequency and improve user experience.
• Query Keys: Unique identifiers for queries in React Query; changes in the query key trigger refetching.
• Mutations: React Query's mechanism for modifying server-side data, with automatic cache updates based on the result.
• Stale Time: Configurable duration for which cached data is considered fresh before a refetch is required.
• Invalidation: The process of marking a query as stale so it can be refetched when needed.

Common Issues and Resolutions

1. Redux State Not Updating
   Resolution: Ensure your reducers are pure functions that return new state objects instead of mutating the existing state.

2. React Query Not Refetching Data
   Resolution: After a mutation, call queryClient.invalidateQueries('queryKey') to refetch the data.

3. API Data Not Caching
   Resolution: Verify that you are using the correct staleTime and cacheTime options in your queries.

4. Error Handling Not User-Friendly
   Resolution: Implement user-friendly error messages in the UI based on error states from both Redux and React Query.

5. UI Not Re-rendering
   Resolution: Ensure that the query keys in your useQuery calls change when relevant data changes, prompting React Query to refetch data.

6. React Query Data Stale After Manual Refetch
   Resolution: Check if you are invalidating the correct query with the appropriate query key.

7. Create Node Server Using TypeScript
   Resolution: Initialize a new Node.js project with TypeScript, and ensure your server.ts file is set up correctly.

8. Develop a Landing Page Using React.js
   Resolution: Create a new component for the landing page, ensuring it's integrated into your application's routing.

9. Implement Axios to Get Data from APIs to React Components
   Resolution: Use Axios to create an API service for fetching data and handle responses and errors effectively.

10. Handling CORS Issues
    Resolution: Ensure your Node server has CORS enabled by using the cors middleware.

11. Data Not Displaying in UI
    Resolution: Check if the data fetched from the API is being correctly passed to the component's state.

12. Performance Issues with Large Datasets
    Resolution: Implement pagination or infinite scrolling to handle large datasets efficiently.

13. React Query Queries Not Triggering
    Resolution: Ensure that the conditions for triggering the queries are correctly defined in your useQuery calls.

14. State Not Syncing Between Client and Server
    Resolution: Use useQuery and mutations together to ensure that state changes on the server are reflected in the client state.

How to Contribute:

1.	Fork the repository: Click the ‘Fork’ button at the top-right corner of this page to create a copy of this repository on your GitHub account.

2.	Clone the repository: Use the command below to clone the forked repository to your local machine:

    git clone https://github.com/your-username/repository-name.git

3.  Create a new branch: It’s recommended to work in a new branch for each contribution.

    git checkout -b feature-branch

4.  Make your changes: Add new algorithms or enhance the existing ones. Be sure to write clean and well-documented code.

5.	Commit your changes: Write meaningful commit messages that describe your changes clearly.

    git commit -m "Added [algorithm name] or Improved [functionality]"

6.  Push your branch: Push your branch to your forked GitHub repository.

    git push origin feature-branch

7.	Create a Pull Request: Navigate to this repository on GitHub, click “New Pull Request,” and follow the prompts.

What We Expect:

•	Clarity: Make sure your code is well-documented with comments and follows consistent formatting.
•	Efficiency: Algorithms should be optimized for performance, with explanations if needed.
•	Readability: Ensure your code is easy to understand for other contributors or learners.
•	Tested Code: Please test your contributions before submitting a Pull Request (PR).

Contribution Guidelines

•	Ensure that your code or improvements are not already present in the repository. Check existing contributions before adding your own.
•	Each algorithm should have a brief description of its purpose, time complexity, and use cases in the code comments or as a markdown file (if necessary).
•	No plagiarized content. Always provide credit if you use or adapt existing solutions.
•	Contributions should focus on common algorithms (e.g., sorting, searching, dynamic programming) or well-known problems (e.g., Fibonacci series, factorial) that can help others prepare for interviews or coding challenges.

Hacktoberfest Participation

This repository is part of Hacktoberfest 2024 🎉! Feel free to contribute as part of your Hacktoberfest journey by:

•	Adding new algorithms or improving existing ones.
•	Fixing bugs or optimizing the current code.
•	Enhancing documentation or examples.

Note: Make sure your contributions follow the Hacktoberfest guidelines to be counted towards your total. Contributions will only be accepted if they meet the quality standards set by the Hacktoberfest rules.

Need Help?

If you have any questions, feel free to create an issue on GitHub, and we’ll be happy to assist you.

Happy coding! 🚀

This will guide contributors in understanding your repository’s requirements and encourage them to participate in Hacktoberfest. Let me know if you’d like any adjustments!